package Domestic;
class M{
	public interface MInterface {
		boolean isNegative(int x);
	}
}
class N implements M.MInterface {
	public boolean isNegative(int x){
		return x<0?false:true;
	}
}
public class NestedInterface {
	public static void main(String[] args){
		M.MInterface mi = new N();
		if(mi.isNegative(12))
			System.out.println("Let us see");
		if(mi.isNegative(-12))
			System.out.println("Let us not see");
	}

}
